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PVM-1442QM
Sony PVM-1442QM User Manual
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SERVICE
MANUAL
AEP
Model
PVM-1440QM
Chassis
No.
SCC-C57A-A
PVM-1442QM
Chassis
No.
SCC-C56A-A
PVM-1
444QM
Chassis
No.
SCC-C55A-A
(PVM-1444QM)
Video
signal
Frequency
response
Line
input:
More
than
7
MHz
(-3
dB)
Y/C
input:
More
lhan
8
MHz
(-3
dB)
Component
input
(Y/R-Y/B-Y):
More
than
8
MHz
(-3
dB)
R.G.B.
input
(analog):
More
than
9
MHz
(-3
dB)
Chrominance
subcarrier
attenuation
3.58
MHz:
Less
than
-30
dB
(comb
filter)
4.43
MHz:
Less
than
-36
dB
(trap
filter)
Bandpass
3.58
MHz:
2
MHz
equiband
4.43
MHz:
2
MHz
equiband
Chrominance/luminance
time
error
Composite:
Less
than
±100
ns
Y/C
Video:
Less
than
±50
ns
Component:
Less
than
±50
ns
Aperture
correction
-4.5
to
+6.5
dB
(at
4.5
MHz)
Synchronization
AFC
time
constant:
1
msec
Line
pull
range
Horizontal:
±500
Hz
Vertical:
8
Hz
Picture
performance
Normal
scan
7%
overscan
of
CRT
effective
screen
area
Under
scan
3%
underscan
of
CRT
effective
screen
area
H.
linearity
error
Less
than
4%
V.
linearity
error
Less
than
5%
Convergence
Central
area:
0.6
mm
Peripheral
area:
0.8
mm
Raster
size
stability
H:
1.0%,
V:
1.5%
High
voltage
regulation
3%
Audio
output
0.6
W
(Max.)
CRT
PVM-1444QM/PVM-1442QM:
EBU
PVM-1440QM:
P-22
Chromacity
coordinates
(EBU
only)
i
X
Y
Red
•
0.640
0.330
Green
0.290
0.600
Blue
1
0.150
0.060
(tolerance
±0.01)
Color
temperature
6,500°
K/9,
300°
K
(+8MPCD),
selectable
AC
regulation
range
220
-
240
V
AC,
50/60
Hz
Power
consumption
Approx.
75
Wh
SPECIFICATIONS
inputs
For
ail
models
VIDEO
IN:
BNC
connector
AUDIO
IN:
phono
jack
VTR:
8-pin
connector
Y/C-INPUT
VIDEO:
4
pin
connector
AUDIO:
phono
jack
PVM-1444QM
only
EXT
SYNC:
BNC
connector
composite
sync
1-4
Vp-p,
negative,
75
ohms
terminated,
automatically
released
when
cable
is
connected
to
the
output
connector.
ANALOG
RGB/COMPONENT:
BNC
connector
R,
G,
B
and
Y
channels:
0.7
Vp-p,
±6
dB,
non
composite
R-Y
and
B-Y
channels:
0.525
Vp-p,
±6
dB
(Standard
color
bar
signal
of
75-percent
chrominance)
When
the
composite
signal
is
fed
to
the
G
or
Y
channels,
the
monitor
can
be
activated
in
the
internal
sync
mode.
75
ohms
terminated,
automatically
released
when
a
cable
is
connected
to
the
output
connector.
CTRL
S:
Minijack
.
w.
wokiub
manuals
MAURITRON
SERVICES
8
Cherry
Tree
Road,
Chinnor
Oxfordshire,
OX9
4QY
Tel
(01844)
351694
Fax
(01844)
352554
email:-
mauritron@dial.pipex.com
PVM-1442QM
only
EXT
SYNC:
BNC
connector
composite
sync
1-4
Vp-p.
negative,
75
ohms
terminated,
automatically
released
when
cable
is
connected
to
the
output
connector.
ANALOG
RGB:
BNC
connector
0.7
Vp-p,
±6
dB,
non
composite
75
ohms
terrrftnated,
automatically
released
when
cable
is
connected
to
the
output
connector.
DIGITAL
RGB:
9-pin
connector
CTRL
S:
Minijack
PVM-1440QM
ANALOG
RGB
signal
through
AV:
0.7
Vp-p,
±6
dB,
non
composite,
75
ohms
terminated
—
Continued
on
next
page
—
TRINITRON
®
COLOR
VIDEO
MONITOR
SONY
2
Table of Contents
Specifications
1
RGB Connector
2
VTR Connector
2
Y/C INPUT Connector
2
Pvm-1 440Qm/1
2
442Qm/1 444Qm
2
Table of Contents
3
AV Connector
3
Diagrams
3
General
4
Features
4
Location and Function of Parts and Controls
5
Front Panel
5
Picture Adjustment Buttons
6
Rear Panel
7
Disassembly
9
Rear Cover and Top Cover Removal
9
Terminal Board Removal
9
Bracket of Terminal Board Removal
10
Control Unit Removal
10
Picture Tube Removal
11
Anode Cap Removal
11
Set-Up Adjustments
12
Beam Landing
12
Convergence
13
Focus
14
White Balance
15
Safety Related Adjustments
16
Confirmation When Replacing H.V.R.
16
Circuit Adjustments
18
Board Adjustments
18
Horizontal Oscillation Frequency Adjustment
18
H.V BLK Adjustments
18
Vertical Deflection Part Adjustments
19
Horizontal Deflection Part Adjustments
19
H.V Delay Adjustment
20
ACC Adjustment
20
R.Y dem Level Adjustment
20
XA Board Adjustment
21
Matrix Adjustment
21
BA Board Adjustments
22
PAL Adjustments
22
Secam Adjustments
23
Frame Schematic Diagram
25
Block Diagrams
27
Printed Wiring Boards
37
Exploded Views
82
Electrical Parts List
84
Table of Contents
107
Schematic Diagram
112
Printed Wiring Boards
116
Chassis
118
Electrical Parts List
119
5
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Sony PVM-1442QM Specifications
General
Screen Size
14 inches
Aspect Ratio
4:3
Display Type
CRT
CRT Type
Trinitron
Scan Lines
600
Input Types
Composite, S-Video
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